JPH0368806B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a metering and kneading device for concrete materials.

(Prior art) In general, quick-hardening concrete has a very short usable time due to its quick-hardening properties, so it is impossible to mix it in advance and then transport it. It is necessary to knead the required amount of each material in the correct ratio.

As a concrete material transportation and kneading device that satisfies such needs, for example, JP-A-Sho
There is one described in Publication No. 56-99616.

(Problem to be Solved by the Invention) However, in such conventional devices, the weighing device was mounted on the vehicle frame and weighed while in contact with the vehicle frame, so it was difficult to measure the weighing device on uneven terrain, steep slopes, etc. In this case, the measuring device would be tilted, which would affect the measuring accuracy, so there was room for improvement in this respect.

SUMMARY OF THE INVENTION An object of the present invention is to provide a measuring and kneading apparatus for concrete materials that can measure concrete materials with high accuracy and has improved reliability in measuring.

(Means for Solving the Problems) The present invention includes at least a kneading device mounted on a vehicle frame for kneading concrete materials, and a measuring device for concrete materials disposed on the kneading device, The device includes a support frame placed on the vehicle frame, extensible and retractable adjustment jack means disposed at the four corners of the support frame, and a device that adjusts the support frame in the longitudinal direction of the vehicle body in a vertical plane through adjustment members. The structure includes a movable frame rotatably supported by a movable frame and a weighing machine installed on the movable frame.

(Function) When weighing concrete materials, before weighing, first extend the adjusting jacks at the four corners of the support frame (and therefore the weighing machine).
The movable frame is moved away from the vehicle frame and adjusted so that it is in a horizontal state, and then the adjustment member is operated to rotate the movable frame in the longitudinal direction of the vehicle body within the vertical plane to correct the adjustment made by the adjustment jack means. conduct,
As a result, the movable frame and therefore the weighing machine are in a substantially horizontal state and separated from the vehicle frame side, and in this state, the weight is measured at fixed intervals.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In the quick-hardening concrete mixer truck 1 shown in FIGS. 1 to 3, 2 is a vehicle frame;
On top of that, a pair of left and right cement chambers 3, 4, a coarse aggregate chamber 5 such as gravel, a fine aggregate chamber 6 such as sand, and a water tank 7.
and admixture tanks 8 and 9, respectively.

Further, as shown in detail in FIG. 3, the aggregate is transferred from each aggregate chamber 5, 6 to a weighing machine 16 via belt feeders 10, 11, bucket conveyors 12, 13, and screw conveyors 14, 15. Measuring container 1
7. Further, the cement is conveyed from each cement chamber 3, 4 to the measuring container 17 of the measuring device 16 via the screw conveyors 18, 19, the common screw conveyor 20, and another screw conveyor 21. It's becoming like that.

The measuring container 17 of the measuring device 16 has measuring chambers 22, 23, 22, 23, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23 have been measured, and the measuring container 17 of the measuring device 16 has measuring chambers 22, 23, in which coarse aggregate, fine aggregate, and cement are stored.
24 are formed independently, load cells 25, 26
The summation box 27 calculates cumulatively using the summation box 27.

The aggregate and cement thus measured are fed to a mixer 28 as a kneading device.

On the other hand, the admixture is pumped from each tank 8, 9 to another measuring container 3 of the measuring device 16 using an admixture pump 29, 30.
1 measurement chamber 32, 33, and the load cell 3
4 and 35 are used for cumulative measurement in the summation box 36. Further, water is fed from the water tank 7 by a water pump 37 to another measuring container 38 of the weighing machine 16, and is measured in a sum calculation box 41 using load cells 39 and 40. .

The water thus measured is supplied to the mixer 28 together with the admixture thus measured.

The concrete materials fed to the mixer 28 are mixed and agitated within the mixer 28 and are discharged via a screw auger 42 serving as a discharge device.

43 is a hydraulic motor as a driving means, 44 is an operation panel, and 45 is a waterproof canvas.

Note that the required amounts of coarse aggregate, fine aggregate, admixture, cement, and water per batch are set in advance by the operator.

As shown in detail in FIGS. 4 and 5, the weighing machine 16 is connected to the mixer 28 via left and right support members 52 and 53 to a support frame 51 that is removably mounted on the vehicle frame 2. It is mounted on a movable frame 54 that is supported rotatably in the longitudinal direction of the vehicle body within a vertical plane about an axis A at a position corresponding to the connection position. Reference numeral 55 denotes adjustment members disposed on the left and right sides that can be expanded and contracted by operating the handle 56, the upper and lower ends of which are connected with pins to the support frame 51 and the movable frame 54, respectively, and thereby to the movable frame 54; Therefore, the movable frame 54 can be rotated. Note that the handles 56 of the left and right adjustment members 55
are linked by a chain 57.

Further, the support frame 51 is provided with extensible adjustment jack means 58, 58, 58, 58 at the four corners,
By expanding during weighing, it is separated from the vehicle frame 2 so that vibrations are not transmitted from the vehicle frame 2 side. On the other hand, extendable main jack means 59, 59 are disposed on the left and right sides of the vehicle frame 2, so that the vehicle frame 2 can be brought into a nearly horizontal state by being extended on uneven terrain with a sloping ground surface. It's becoming like that.

The support frame 51 is fixed to the vehicle frame 2 by lashing means 60 shown in FIGS. 2a and 2b at times other than when weighing. That is, the support frame 51 has an engagement member 6 having a notch 61a.
1 is provided, and an engagement pin 62 that is movable up and down is provided on the vehicle frame 2 side. As a result, when the piston rod 63a of the hydraulic cylinder 63 operates in the S direction, the engagement pin 62 moves upward via the link mechanism 64 in the middle, and the engagement member 61 and therefore the support frame 51 are secured. It will be canceled. On the other hand, when the piston rod 63a is operated in the T direction, the sixth
The state shown in FIGS. a and s is reached, and the engaging member 61 and therefore the support frame 51 are secured. Note that the front and rear link mechanisms 64 are interconnected via a link member 65, and the left and right link mechanisms 64 are interconnected via a torque shaft 66, so that they are operated by one hydraulic cylinder 63.

With the above structure, when measuring concrete material, the main jacking means 59, 59 on the side of the vehicle frame 2 are first extended to bring the vehicle frame 2 into a substantially horizontal state. Note that this work is not necessary when the vehicle frame is in a substantially horizontal state.

Subsequently, the lashing means 60 is released and the support frame 51 is
is in a free state with respect to the vehicle frame 2, and in this state, the four adjusting jack means 58 are extended to detach the support frame 51 and therefore the weighing machine 16 from the vehicle frame 2, and to move the vehicle body in a vertical plane. Adjustments are made so that the vehicle is in a horizontal state in the longitudinal direction and in the left-right direction of the vehicle body in the vertical plane. Then, the adjustment member 55
is operated to rotate the movable frame 54 in the longitudinal direction of the vehicle body within the vertical plane, thereby correcting the horizontal adjustment in the longitudinal direction of the vehicle body by the adjustment jacket means 58.

Thereby, the movable frame 54 and the weighing machine 1
6 is in a substantially horizontal state in the longitudinal direction of the vehicle body and the left and right direction of the vehicle body in a vertical plane, and is in a state separated from the vehicle frame 2 side, and in this state, the weight is measured at regular intervals. As a result, accurate measurement is possible without being affected by vibrations, slopes (uneven terrain), etc.
In addition, since the measuring containers 17, 38 and the mixer 28 are connected by the bellows members 67, 69, 70,
Vibrations etc. are not transmitted.

On the other hand, after the work is completed, by fixing the support frame 51 to the vehicle frame 2 using the lashing means 60, problems such as the weighing machine 16 (support frame 51) moving during driving do not occur. In addition, as a positioning means when mounting the support frame 51 on the vehicle frame 2,
As shown in FIG. 4, a cone member 71 on the vehicle frame 2 side
A combination of a tapered hole 72 on the support frame 51 side, a frame member 73 having a tapered surface on the vehicle frame 2 side, and a support frame 51 side that engages with the frame member 73 on the support frame 51 side that engages with the frame member 73. A combination with the frame member 74, etc. can be used.

Further, since the support frame 51 can be adjusted with the adjustment jack means 58 and the movable frame 54 can be adjusted with respect to the support frame 51 with the adjustment member 55, when working on a steep slope etc. For example, when the front wheel side is high and the rear wheel side is sufficiently low, even if the support frame 51 cannot be brought into a horizontal state only by adjustment by the adjustment jacking means 58,
Adjustment by the adjustment member 55 allows the weighing machine 16 (movable frame 54) to be placed in a horizontal state.

(Effects of the Invention) As described above, the present invention is configured such that the weighing machine can be adjusted to a nearly horizontal state by the adjusting jack means and the adjusting member, so that it can be used on uneven terrain, steep slopes, etc. It becomes possible to accurately measure concrete materials without being affected by the slope of the concrete.

In particular, a support frame is provided on the vehicle frame with extensible adjustment jacks arranged at the four corners, and the movable frame is rotatable in the longitudinal direction of the vehicle body in a vertical plane via adjustment members with respect to the support frame. Therefore, when working on a steep slope, etc., for example, when the front wheels are high and the rear wheels are sufficiently low, even if the support frame cannot be brought into a horizontal state by adjusting only with the adjusting jack means, The movable frame (weighing machine) can be placed in a horizontal state by adjustment using the adjustment member.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of a quick-hardening concrete mixer truck, FIG. 2 is a plan view of the same essential parts, and FIG. 3 is an explanation of the functions of the mixer truck shown in FIG. 1. 4 and 5 are rear and side views of the vicinity of the weighing machine, respectively, and FIGS. 6a and 6b are explanatory diagrams of the locking mechanism, respectively. 1...Mixer truck, 2...Car frame, 16...Weighing machine, 51...Support frame, 54...Movable frame, 55...
Adjustment member, 58...adjustment jacking means.

Claims (1)

[Claims] 1 At least a kneading device mounted on a vehicle frame for kneading concrete materials, and a measuring device for concrete materials disposed on the kneading device, and the measuring device is connected to a support placed on the vehicle frame. a frame, extensible and retractable adjustment jacks disposed at the four corners of the support frame, and a movable frame supported rotatably in the longitudinal direction of the vehicle body in a vertical plane via an adjustment member with respect to the support frame. 1. A measuring and kneading device for concrete materials, comprising: a weighing machine mounted on the movable frame.